.TH SLAPD-WT 5 "RELEASEDATE" "OpenLDAP LDVERSION"
.\" Copyright 2011-2022 The OpenLDAP Foundation All Rights Reserved.
.\" Copying restrictions apply.  See COPYRIGHT/LICENSE.
.\" $OpenLDAP$
.SH NAME
slapd\-wt \- WiredTiger backend to slapd
.SH SYNOPSIS
.B ETCDIR/slapd.conf
.SH DESCRIPTION
The \fBwt\fP backend to
.BR slapd (8)
uses WiredTiger database library to store data.
.LP
The \fBwt\fP backend is experimental module that have potential high
write performance and high concurrency performance.
This backend have not some basic feature yet. Please backup data using
slapcat before update the module.

.SH CONFIGURATION
These
.B slapd.conf
options apply to the \fBwt\fP backend database.
That is, they must follow a "database wt" line and
come before any subsequent "backend" or "database" lines.
Other database options are described in the
.BR slapd.conf (5)
manual page.
.TP
.BI directory \ <directory>
Specify WiredTiger home directory that containing this database and
associated indexes live.
A separate directory must be specified for each database.
The default is
.BR LOCALSTATEDIR/openldap\-data .
.TP
.BI idlcache \ <boolean>
Use the in-memory idlcache. The default is true.
.TP
\fBindex \fR{\fI<attrlist>\fR|\fBdefault\fR} [\fBpres\fR,\fBeq\fR,\fBapprox\fR,\fBsub\fR,\fI<special>\fR]
Specify the indexes to maintain for the given attribute (or
list of attributes).
Some attributes only support a subset of indexes.
If only an \fI<attr>\fP is given, the indices specified for \fBdefault\fR
are maintained.
Note that setting a default does not imply that all attributes will be
indexed. Also, for best performance, an
.B eq
index should always be configured for the
.B objectClass
attribute.
.TP
.BI mode \ <integer>
back-wt does not support mode option. use umask instead.
.TP
\fBwtconfig \fR{\fBcreate\fR,\fBcache_size=512M\fR,\fBasync=(enabled)\fR}
Specify configuration for wiredtiger, This parameter is pass to
.BR wiredtiger_open (3).
.RS
.TP
.B create
create the database if it does not exist.
.RE
.RS
.TP
.B cache_size
maximum heap memory to allocate for the cache.
.RE
.RS
.TP
.B async
asynchronous operations configuration options. disabled by default.
.RE
.RS

.SH ACCESS CONTROL
The
.B wt
backend honors access control semantics as indicated in
.BR slapd.access (5).
.SH FILES
.TP
.B ETCDIR/slapd.conf
default
.B slapd
configuration file
.SH SEE ALSO
.BR slapd.conf (5),
.BR slapd\-config (5),
.BR slapd (8),
.BR slapadd (8),
.BR slapcat (8),
.BR slapindex (8),
.BR slapmodify (8),
WiredTiger documentation.
.SH ACKNOWLEDGEMENTS
.so ../Project
Written by HAMANO Tsukasa <hamano@osstech.co.jp>.
